ivy's aren't the easiest plants to keep in a warm climate... as people have stated they like it rather cool and moist if i were you i would get plants that match your condictions.. talk to your boss and see if you can have a humidifer or an enclosed mini green house by where you work. if you cant. maybe at home would be best.
offices IMHO aren't good places for tropical plants anyway they often lack enough light/lack humidity and this is a hobby that can quickly get out of hand. i started with 2 plants now i have 17.